import { Component } from '@angular/core';
import { NavController, ItemSliding, ModalController } from 'ionic-angular';
import { Task } from './task';
import { HttpDataProvider } from '../../providers/http-data/http-data';
import { InputTaskPage } from '../input-task/input-task';

@Component({
  selector: 'page-tasklist',
  templateUrl: 'tasklist.html'
})
export class TaskListPage {
  tasks: Task[] = [];

  constructor(public navCtrl: NavController,
    public modalCtrl: ModalController,
    public httpData: HttpDataProvider) {

  }

  ionViewDidLoad(){
      // this.tasks=[
      //{title: '牛奶', status: 'open'},
      //{title: '鸡蛋', status: 'open'},
      //{title: '果汁', status: 'open'},
      //{title: '饮料', status: 'open'}
    //]; 
    this.httpData.getTaskList().subscribe(tasks => {
      this.tasks = tasks;
      console.log(tasks);
    });
  }
/**
 * 新增待办事项
 */
  addTask(){
    //let theNewTask: String =prompt("新任务");
    //if(theNewTask !== ''){
    //this.tasks.push({title: theNewTask, status: 'open'});
    //}
    let addModal = this.modalCtrl.create(InputTaskPage);

    addModal.onDidDismiss((task: Task) => {
      if(task){
        this.tasks.push(task);
      }
    });

    addModal.present();
  }

  editTask(task: Task){
    if(task.status === 'done')
    return;
    const index : number = this.tasks.indexOf(task);
    let editModal = this.modalCtrl.create(InputTaskPage, {task: task});

    editModal.onDidDismiss((task) => {
      if(task){
        this.tasks[index] = task;
      }
    });

    editModal.present();
  }

  /**
   * 标记待办事项
   * @param slidingItem 
   * @param task 
   */
  markAsDone(slidingItem: ItemSliding, task: Task){
    task.status = 'done';
    this.httpData.updateTask(task).subscribe();
    slidingItem.close();
  }

  /**
   * 删除待办事项
   * @param slidingItem 
   * @param task 
   */
  removeTask(slidingItem: ItemSliding, task: Task){
    task.status = 'removed';
    let index = this.tasks.indexOf(task);
    if(index > -1){
      this.tasks.splice(index, 1);
    }
    this.httpData.deleteTask(task).subscribe();
    slidingItem.close();
  }


  doRefresh(refresher: any){
    setTimeout(() => {
      this.httpData.getTaskList().subscribe(tasks => {
        this.tasks = tasks;
      });
      refresher.complete();
    },2000);
  }

}
